Apparently 12 volunteers experienced visuals similar to those caused by psilocybin - the ingredient in magic mushrooms - after being shown a panoramic video - altered by Deepdream - of the Sussex Uni campus, according to International Business Times.

DeepDream is described as a tool that "uses a convolutional neural network to find and enhance patterns in images."

Researchers said: "Overall, the Hallucination Machine provides a powerful new tool to complement the resurgence of research into altered states of consciousness."